Not specific to the Edge, but sensor dust is very normal. If you use your gear you’ll get dust on the sensor eventually, and sometimes moisture in the air condenses onto the sensor when you’ve got it exposed for a lens swap. It’s really not a big deal to clean. Using a blower with the camera pointed downwards is the first easy fix, but that only works if there’s no static holding the dust onto the sensor or if the issue isn’t a stain caused by evaporated moisture particles.
The way to deal with the moisture particle or dust that won’t blow off is simply to use a sensor cleaner. These are very affordable and readily available for various sensor sizes. Simply search online for a full frame sensor cleaning kit. You should look for pre-moistened swabs and follow the instructions. I’ve done this on many cameras and never had an issue. You just need to make sure you make one even, uninterrupted swipe with moderate pressure. That should work just fine.
Also remember that it is very rare for image sensors to be naked in the housing. There’s an OLPF or additional coating almost always applied just for these kinds of scenarios. While literature on the Mavo line is very limited, I’d be surprised if Kinefinity opted for a completely unprotected sensor. They’d be warrantying non-stop if that was the case.
